The base and perpendicular height are at right angles. Showing that a parallelogram has the same area as a rectangle: Split the parallelogram into a right-angled triangle and a trapezium. Move the ...
A rectangle has two pairs of equal sides. It has four right angles (90°). The opposite sides are parallel. The diagonals bisect each other. A parallelogram has two pairs of equal sides. It has two ...
Most of our tenth graders find geometry a hard nut to crack. They face difficulty in proving certain results in a given geometric figure. It is not because they do not know the basic rules and ...